Title :
Design and Characterization of Ink-Jet and Screen Printed HF RFID Antennas
Author :
Salmerón, José F. ; Torres, Almudena Rivadeneyra ; Banqueri, Jesús ; Carvajal, Migue A. ; Agudo, Manuel
Author_Institution :
Dept. de Electron. y Tecnol. de Comput., Univ. de Granada, Granada, Spain
Abstract :
The physical and electrical characterization of several patterns printed by ink-jet and screen printing are presented in this work. The main goal is to determine suitable techniques to manufacture RFID antennas by using different conductive Ag inks, pastes and substrates commonly used in RFID. The physical characterization consisted of measurements of the layer thickness and the RMS roughness of the patterns. DC electrical characterization has been carried out to study different conductive inks and substrates pointing out the lowest sheet resistance and the best printability for each analyzed case. Using the optimal conditions obtained from this work, coil inductors have been fabricated by both techniques in order to validate the present study. Ink-jet printed antennas have been fabricated with Sun Tronic Ag ink on PEI substrates and screen printed antennas have been fabricated on various substrates using screen mesh densities of 90h and 140h. Finally, a semi-passive RFID tag for the HF band providing temperature and humidity sensor capabilities is presented.
Keywords :
HF antennas; antenna radiation patterns; conducting materials; inductors; ink jet printing; microstrip antennas; radiofrequency identification; silver alloys; Ag; DC electrical characterization; PEI substrates; RMS roughness; Sun Tronic silver ink; coil inductors; conductive inks; humidity sensor; ink-jet design; ink-jet printed antennas; layer thickness measurements; pastes; screen mesh density; screen printed HF RFID antennas; semipassive RFID tag; sheet resistance; temperature sensor; time 140 h; time 90 h; Antennas; Inductors; Ink; Printing; Radiofrequency identification; Substrates; Temperature measurement; Printed electronics; RF tag; RFID; ink-jet printing; screen printing; sensor RFID;
Conference_Titel :
RFID Technology (EURASIP RFID), 2012 Fourth International EURASIP Workshop on
Conference_Location :
Torino
Print_ISBN :
978-1-4673-2602-5
DOI :
10.1109/RFID.2012.22
